How to Grow & Bloom Orchids

Plant the orchid in a potting mix specifically intended for orchids, which is better draining than traditional potting soils.

Place your potted orchid in a south-facing windowsill. Orchids that don't receive enough light won't bloom. You'll know the orchid is getting enough light by the color of its leaves. Orchids with enough light are a medium-green color. If the orchid gets too much light leaves will look yellow, too much light will turn leaves dark green.

Check the potting medium for moisture by placing your finger in the center of the container. If the soil is dry 1 inch deep, you'll need to add some water. Limit watering to once a month during bloom time. If the orchid gets too much water, it may develop rot of the roots; drain off excess water and repot if necessary.

Increase the humidity around the area by placing orchids in a pan of water and grouping more flowers in one location. Orchids prefer humidity levels near 50 to 70 percent.

Fertilize the orchid once a week with a water-soluble fertilizer while it is blooming, following manufacturers instructions for quantities and application methods. Decrease fertilizing as the bloom matures and the plant goes into dormancy.

Repot the orchid ever one to two years to allow the plant to grow larger. Repot during the months between February and June to limit damaging the blooms. Rinse off the roots and clip away any dead roots or yellowed foliage. Plant the orchid at the same depth as before, ensuring that the crown is at the same distance from the soil level.